Hyperion EOS 1420i NET3 14s Balance Charger...

[EBJ]

That way I don't plug the charger to a live power supply (with possible spark at the connector).

I got that spark a few times. Now I make it habit to plug the charger into the PSU BEFORE plugging the PSU into the wall.

[dennyt]

My 1420i at home is making bad fan noises when it starts up... groaning, I would call it. After about a minute the noise goes away, but I don't think it's healthy. I transported this charger by bike for about a month before I bought another one so I could leave them at home & work.

Any probable causes? If it's just a loose component inside I'll go after it.

[hillzofvalp]

A lot of chargers do that .. sometimes you have to tap them. idk.

My hyperion is overshooting a lot of charge cycles. I told it to Store overnight and I woke up in the morning and it was still charging at 78%. restarted it, and now it's discharging back down to 60%. This could be dangerous!

[hillzofvalp]

Just tried it again with TCS set to 70%.. it charged up to 84%.

[El_Steak]

Just tried it again with TCS set to 70%.. it charged up to 84%.

The storage mode on the Hyperion charger and the low TCS settings will give you inconsistent results on every charge. This has been discussed a lot on RCGroups and also in this thread a few pages up:

viewtopic.php?f=14&t=23362&start=165#p417999

I only use the charge modes with mine which consistently gives me 4.16V per cell at 95% and 4.12V per cell at 90%. The storage mode will give me pretty much anything between 3.7 and 3.9V. The lower TCS settings also give me a wide range of end voltages.

To discharge for winter storage I just rode around a bit until I reached my desired voltage and then just unplugged the whole thing.

[hillzofvalp]

It used to work well with store mode. Now the tcs indicator on the LCD will actually change dramatically during charge, say from 90% to 67%. It must be a firmware problem.. It started doing this with 5 and 5.1. There's no point of a $180 charger if it can't do this correctly.

[marty]

It used to work well with store mode. Now the tcs indicator on the LCD will actually change dramatically during charge, say from 90% to 67%. It must be a firmware problem.. It started doing this with 5 and 5.1. There's no point of a $180 charger if it can't do this correctly.

Complain to where ever you bought it from.

[hillzofvalp]

Ive tried and did not reach anyone at Hyperion. Now I'm organizing rebellion.. Noticing that others are having same issue

[marty]

Ive tried and did not reach anyone at Hyperion. Now I'm organizing rebellion.. Noticing that others are having same issue

Try?
http://www.hyperion-world.com/wheretobuy/
Hyperion Distributors

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224, 2/F, Pegasus Building,
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Mong Kok, Kowloon,
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Tel: +(852) 2380 9789
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Hong Kong (Retail sales only)
Tower Hobby Limited
Flat G, G/F., 181A-181G Wan Chai Road,
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Tel: +(852) 2482-1223
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Hong Kong (Retail sales only)
Windrider R.S.B Aviation Ltd.
Blk A & B, 8/F,
Chen Yip Ind Bldg,
5 Lai Yip St,
Kwun Tong, Kowloon,
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Tel: (852) 27968724
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India
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e-Hely
ITC Kuningan Lantai 4 Block C10 No 6
Jakarta Selatan - 12940
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Japan / Asia
AIR CRAFT Ltd.
Iizuka Oroshi Danchi
24-10 TOKUZEN
Iizuka, Fukuoka 820-0033
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Malaysia
RC Smart Marketing
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New Zealand
Bandit Imports Ltd
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Gaba Hobby Cener
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Tel: 00595 61 505-902
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Philippines
GopedAsia
14 Victory St. Barangay Tatalon
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Tel : +6329868801
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Russia
Planeta Hobby, Ltd.
Industrial park "Sky Trade"
Repischeva str. 20,
St. Petersburg, 197349,
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Tel: (+7)-812-304-8647
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Singapore
Sky Hobbies Singapore
200, Jalan Sultan, #02-36A, Textile Centre,
Singapore 199018.

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South East Asia / Korea
Hanman International Pte Ltd
Full Line Distributor for Korea, Singapore, Malaysia, Indonesia and Thailand

View dealers at http://www.hyperion-sea.com/
2 Jurong East Street 21
#03-157 IMM Building
Singapore 609601

Tel: +65 6564 4704
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Thailand
Tenmeter Communication Co., Ltd
136 Charoenkong Rd., Wangbhrapapirom
Pranakorn, Bangkok, Thailand 10200

Tel: (66) 2226 5100
Fax: (66) 2623 9025
Email: mon@thailandhobby.com
http://www.tenmetershop.com/

Taiwan
Shiau Yau Industrial Ltd.
295 Chung-Jeng 1st RD.
Kaohsiung,Taiwan 802

Tel: +886 7 7210436
Fax: +886 7 7215678
Email: shya@ms2.hinet.net
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Formosa R/C Model
No. 45, Wunsian Rd.,
Gangshan Township,
Kaohsiung County 820, Taiwan

Tel: +886 7 6210783
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GT RC MODEL
1F, No.152, XinYi Rd.,
LinKou, Taipei County
Postal Code:244

Tel: 886-2-2603-2117
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Ukraine
IT-LINK
Vasilkovskaya str, 37,
Kiev, Ukraine 03022

Tel: 38-044-490-9533 (inner 206)
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United Kingdom
Robot Birds
Unit 2 Belvue Ind Estate, Belvue Road
Northolt UB5 5HX
United Kingdom

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Mobile: 44 7768 611 484
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Email: sales@robotbirds.com
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United States of America
Empire Hobby, LLC
950 E Baseline Ave
Unit 210
Apache Junction, AZ 85219, USA

Tel: +1 480 982 0909
Mobile: +1 480 227 6057
Fax: +1 480 456 1113
Email: info@empirerc.com
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South Africa
Cape Sailplanes
PO Box 11175
Bloubergrant,
7443 Cape Town
South Africa

Tel: +27 21 556 5635
Fax: +27 21 556 0191
Email: info@capesailplanes.com
http://www.capesailplanes.com/

[hillzofvalp]

price same? Going for $130 shipped on ebay now. stock up

[itchynackers]

What? I've been waiting for one of these!

Edit: Found the sale. Bought one. Thanks Hillz. I owe you a beer for that. These are usually $180 plus shipping.

[hillzofvalp]

I picked up the last one.

http://www.ebay.com/itm/HYPERION-EOS-14 ... 871wt_1398

[kfong]

Can the 1420i do regenerative discharging like the Ichargers. I started to use my Icharger for battery cycling this and really like this feature, but have not come across any mention of it on the Hyperions.

[hillzofvalp]

I think someone said it did.. but I can't confirm this. For ebike use I think it's pretty pointless, especially if you use your bike every day. savings are probably .25kWh for every chance you actually need to discharge... where as that's likely less than half your full pack capacity.. or about $0.01-$0.02

[kfong]

Huh? Please read up on regenerative discharging.

I think someone said it did.. but I can't confirm this. For ebike use I think it's pretty pointless, especially if you use your bike every day. savings are probably .25kWh for every chance you actually need to discharge... where as that's likely less than half your full pack capacity.. or about $0.01-$0.02

[hillzofvalp]

I don't need to, do I? You are effectively recouping energy that you would otherwise lose as heat. Isn't that the only benefit? You get to keep your room cool and save $.02 per discharge. ...at one discharge every day for a year.. You have now saved $7/year plus any gain from not running AC.

[kfong]

That makes no sense, this is what I'm doing with the iCharger. viewtopic.php?f=6&t=12654&start=150

I don't need to, do I? You are effectively recouping energy that you would otherwise lose as heat. Isn't that the only benefit? You get to keep your room cool and save $.02 per discharge. ...at one discharge every day for a year.. You have now saved $7/year plus any gain from not running AC.

[hillzofvalp]

So it essentially lets you discharge closer to the 200W charge rating of the charger? aka 130W is what you were seeing after regen losses (instead of 30W)? That's actually extremely useful. Let me dig through the hyperion manual for that one..

update: NO. Unfortunately not. But I just posted on a 275 page thread re: Hyperion chargers/support on regroups.

http://www.rcgroups.com/forums/showthre ... e&page=245

[kfong]

Yeah, not only are you able to crank up the load current, but you aren't wasting as much energy to cycle them. The main benifit is it's all automated. I have 12 packs to characterize with 3 charge and discharge cycles. This takes a lot of time to do. I need to be certain the packs are all close to the same amp hrs before they get sealed into the frame. Not needing to leave a 700w power supply on all day with it's loud fan is really nice as well.

So it essentially lets you discharge closer to the 200W charge rating of the charger? aka 130W is what you were seeing after regen losses (instead of 30W)? That's actually extremely useful. Let me dig through the hyperion manual for that one..

update: NO. Unfortunately not. But I just posted on a 275 page thread re: Hyperion chargers/support on regroups.

http://www.rcgroups.com/forums/showthre ... e&page=245

[hillzofvalp]

I might note that the charger that just shipped to me has firmware 5.4, which is not offered on the hyperion firmware update web page. The highest downloadable firmware appears to 5.1.

From the looks of it, it just added ability to set the psu Low voltage shutdown.

When linking the chargers, does the pack need to be split? Does each charger need its own power supply to avoid short circuit?

[mr.electric]

I just updated the firmware and LC software from my 1420i. I hope the interface is faster and more stable now.

[hillzofvalp]

Which versions?

[hillzofvalp]

I see you meant 5.5. Didn't realize hyperion updated them.. coincidently.

I have both my 1420is on the same Power supply.. one is reading 19.4V Input.. the other is reading 19.5V. .1V difference?!?! then what's the point of network balancing with two of these things?!

[fechter]

When linking the chargers, does the pack need to be split? Does each charger need its own power supply to avoid short circuit?

Yes, as far as I know they are not isolated, so not only does each one need a separate supply, the supply outputs need to be isolated if you want to charge the whole pack at once. If you opened a connection mid-pack, then you might be able to do both halves at the same time with one supply, but don't forget to unplug the chargers before reconnecting the pack.

[hillzofvalp]

Wait. You're hinting at being able to charge the whole 20S pack at once with no break... I don't think you meant that, but would be GREAT.

I don't want to disconnect pack from controller all the time. I was going to have it all enclosed in my triangle enclosure (15 bolts each side!). I was going to just rely on the sense line to turn the bike on.. and fuses.

I was misled in thinking I could charge the whole pack without breaking it.. otherwise I would've just bought a bms. Still good chargers to have around, and if I can get it to charge without breaking the pack.. that would be ideal.